Two/three-dimensional reduced graphene oxide coating for porous flow distributor in polymer electrolyte membrane fuel cell

Lee, Gil Won; Shim, Gyu Hyeon; Kim, Ji Min; Seol, Changwook; Kim, Ji Hoon; Kim, Sang Moon; Ahn, Ho Seon

doi:10.1016/j.ijhydene.2020.02.092

Cited by 15 publications

(11 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The durability of the membrane was checked by Fenton’s test because the life of a membrane for fuel cell applications can be determined using this method. The severe attack of · OH and · OOH radicals is the main factor involved in the degradation of the polymer backbone [ 28 , 29 , 30 ]. Herein, it is hindered by inserting cerium ions into the membrane.…”

Section: Resultsmentioning

confidence: 99%

Improved Oxidative Stability by Embedded Cerium into Graphene Oxide Nanosheets for Proton Exchange Membrane Fuel Cell Application

Sharma

Kim

2021

Membranes

View full text Add to dashboard Cite

Investigation of the collaborative effect of cerium particles embedded in graphene oxide to enhance the chemical stability of a proton exchange membrane fuel cell (PEMFC) has been carried out. Synthesis of composite membranes (Nafion-GO/Ce-x) with Nafion solution as a polymer is synthesized by a solution casting method where (x = concentration of composite). The developed hybrid material was characterized by FT-IR and X-ray diffraction (XRD) for its phase identification while the chemical structure was characterized by XPS analysis. The enhancement in the chemical stability of the incorporated hybrid material is characterized by Fenton’s test showing a radical scavenging effect. It was found that the residual weight for Nafion 212 was 92.50% after 24 h and it was 94.32% for Nafion-GO/Ce-2 and 96.49% for Nafion-GO/Ce-4, proving the suitability of composite membranes for fuel cell applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Improved Oxidative Stability by Embedded Cerium into Graphene Oxide Nanosheets for Proton Exchange Membrane Fuel Cell Application

Sharma

Kim

2021

Membranes

View full text Add to dashboard Cite

show abstract

“…The authors would like to thank the Higher Institution Centre of Excellence (HiCOE) Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), and Research Management Centre (RMC) for the support and encouragement (UTM J.13.01/13.14/1/88.Jld. 19 (17)).…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…16 Thus, it is preferred extensively as an inorganic filler in modification of PEM to improve water absorption and proton conductivity through proton hopping. [17][18][19] Muthumeenal et al, attempted to reduce the methanol permeability of sulfonated polyethersulfone (SPES) using GO. 20 However, challenges were encountered during the fabrication of homogeneous GO-polymeric composite membranes.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline decorated graphene oxide on sulfonated poly(ether ether ketone) membrane for direct methanol fuel cells application

Yogarathinam

Jaafar

Ismail

et al. 2021

Polymers for Advanced Techs

View full text Add to dashboard Cite

In direct methanol fuel cells (DMFC), methanol crossover is a major issue which has reduced the performance of polymer electrolyte membrane (PEM) for energy generation. In this study, graphene oxide (GO) and conductive polyaniline decorated GO (PANI-GO) were used as additives in fabrication of sulfonated poly(ether ether ketone) (SPEEK) nanocomposite PEM membrane to reduce methanol crossover. PANI-GO was synthesized by in situ polymerization method and the formation of PANI coated GO nanostructures was confirmed by surface morphology and crystallinity analysis. The membrane morphology and topography analysis confirmed that GO and PANI-GO were well dispersed on the surface of SPEEK membrane. 0.1 wt% PANI-GO modified SPEEK nanocomposite membrane exhibited the highest water uptake and ion exchange capacity of 40% and 1.74 meq g À1 , respectively. The oxidative stability of the nanocomposite membranes also improved. Lower methanol permeability of 4.33 Â 10 À7 cm À2 S À1 was noticed for 0.1 wt% PANI-GO modified SPEEK membrane. PANI-GO modified SPEEK membrane enhanced the proton conductivity, which was due to the existence of acidic and hydrophilic group present in PANI and GO. PANI-GO modified SPEEK membrane held higher selectivity of 1.94 Â 10 4 S cm À3 s À1 . Overall, these studies revealed that PANI-GO modified SPEEK membrane is a potential material for DMFC applications.

show abstract

“…They show exceptional thermal, electrical, and anti-corrosive properties [15]. Several methods, such as CVD [7,15], PVD [16], spray pyrolysis [17], spin coating [18], superheat vaporization of micro-droplet (SVM) method [19], and electrophoretic deposition (EPD) [20][21][22], have been proposed to deposit graphene and GO coatings. Electrophoretic deposition is not only a cost-effective method but also can deposit uniform coatings on substrates with intricate shapes [23].…”

Section: Introductionmentioning

confidence: 99%

Corrosion performance of graphene oxide coated 304 SS in PEMFC environment

et al. 2021

View full text Add to dashboard Cite

In this work, an electrophoretic deposition technique was used to deposit graphene oxide (GO) on 304 stainless steel. Its corrosion performance was evaluated in a simulated polymer electrolyte membrane fuel cell environment. The corrosion current density (icorr) and interfacial contact resistance (ICR) were measured at 8.9 µA/cm2 and 19.3 mΩ cm2, respectively. The icorr of GO coated 304SS is several orders lower than bare SS 304. Similarly, the ICR of GO coated 304SS is nearly half of bare 304SS at a compaction pressure of 150 N/cm2. The potentiodynamic polarization plot indicates the prevalence of multiple corrosion mechanisms. A prolonged corrosion study for 30 days immersed in the simulated PEM cell environment shows the formation of rounded pits that corroborate the activity of pitting corrosion.

show abstract

Two/three-dimensional reduced graphene oxide coating for porous flow distributor in polymer electrolyte membrane fuel cell

Cited by 15 publications

References 42 publications

Improved Oxidative Stability by Embedded Cerium into Graphene Oxide Nanosheets for Proton Exchange Membrane Fuel Cell Application

Improved Oxidative Stability by Embedded Cerium into Graphene Oxide Nanosheets for Proton Exchange Membrane Fuel Cell Application

Polyaniline decorated graphene oxide on sulfonated poly(ether ether ketone) membrane for direct methanol fuel cells application

Corrosion performance of graphene oxide coated 304 SS in PEMFC environment

Contact Info

Product

Resources

About